Preferred Stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended	9 Months Ended
	Aug. 01, 2025	Sep. 30, 2025	Sep. 30, 2025	Dec. 31, 2024
Class of Stock [Line Items]
Liquidation amount		$ 358	$ 358
Carrying amount		$ 349	$ 349	$ 426
Preferred stock, issued (in shares)		8,750	8,750	16,750
Noncontrolling interest		$ 295	$ 295	$ 295
Retained Earnings
Class of Stock [Line Items]
Call of preferred stock		3	3
Series B
Class of Stock [Line Items]
Liquidation amount	$ 80	0	0
Carrying amount	$ 77	0	$ 0	77
Call of preferred stock		80
Basis spread on variable rate	4.52361%
Annual dividend rate			6.625%
Series B | Variable Rate Basis Spread, Percentage One
Class of Stock [Line Items]
Basis spread on variable rate	0.26161%
Series B | Variable Rate Basis Spread, Percentage Two
Class of Stock [Line Items]
Basis spread on variable rate	4.262%
Series B | Retained Earnings
Class of Stock [Line Items]
Call of preferred stock		$ 3
Preferred Class A
Class of Stock [Line Items]
Preferred stock, issued (in shares)		300,000	300,000
Preferred stock, liquidation preference per share (in dollars per share)		$ 1,000	$ 1,000
Basis spread on variable rate			1.11161%
Annual dividend rate			3.75%
Noncontrolling interest		$ 295	$ 295	$ 295
Preferred Class A | Variable Rate Basis Spread, Percentage One
Class of Stock [Line Items]
Basis spread on variable rate			0.26161%
Preferred Class A | Variable Rate Basis Spread, Percentage Two
Class of Stock [Line Items]
Basis spread on variable rate			0.85%
Preferred Class B | FT Real Estate Securities Company, Inc.
Class of Stock [Line Items]
Preferred stock, liquidation preference per share (in dollars per share)		$ 1,000,000	$ 1,000,000
Annual dividend rate			9.50%
Preferred stock issuance (in shares)			50
Preferred Class B | FT Real Estate Securities Company, Inc. | Non Affiliates
Class of Stock [Line Items]
Preferred stock issuance (in shares)			47